The plains are different from the others in Venezuela and Colombia with sedimentation of the Andes. They are more extensive to the north, in the rest of the state are found resembling stains, be characterized by sandy soil with high acid. We note that in the driest parts, especially where there are plenty of rocks, besides grasses, there is an abundance and variety of bromeliads, many of which are distinguished by the quality of retaining water in large quantities.
The forests also differ in the various regions, since the High Ventuari, the Ocamo, Upper Orinoco, are not the same type as those located in rivers Atabapo, Temi, Guanía, Pasimoni, or accompanying on course to Arm Cassiquiare. Nor soils that hold this high vegetation can be identical to the sheets permeable, but by no means cease to be acidic.
No Amazonas a clear understanding of the quality of the soil, it can be said in general, they are relatively acidic, not very suitable for agriculture, being able to see that some are more suitable for livestock. Until now considered that, given the poor quality of these soils, when subjected to crops, to be complemented by minerals lacking, which is very difficult and economically impractical, and other technical causes. There are good prospects for testing banana crops and native plants known and used: Túpiro, Yucca, cupuaçu, Merey, Coco, Cocoa, Coffee, Cane, Medlar, Temare.
We must destroy the myth created in relation to the fertility of these soils. Just in the parts where the vegetation is thick, forming a surface layer of humus that nourishes the roots. When this vegetation is destroyed to make conucos, that tenuous topsoil also destroyed by the action of fire, also encouraging an increase in temperature and causing erosion due to soil washing, thereby encouraging climate change and ecological imbalance.
According to studies carried out to date, the land that could be classified as agricultural may occupy an area equivalent to only 19% of the territory and could place them in the high valley low Ventuari Manapiare, Upper Orinoco, upper Arm Cassiquiare a strip or elevation between Santa Barbara and San Fernando de Atabapo. This percentage noted earlier, it is estimated that cover a little more than three million acres, although subject to certain limitations and individuals.
With reference to the tracts of savannas, considered potentially developable for the possible use of livestock, would cover 7% of the total area of the state. They are flat lands near courses Ventuari and Orinoco rivers, but its use is subject to many natural physical limitations.
As for the large area covering almost 54% of land unsuitable for any development before ¬ scores two should be forest land and protective, so its use should be spent only for recreation, wildlife , care of watershed and aesthetic purposes as national parks, etc.. Many of these lands give corre ¬ mountain slopes, some 30% higher in altitude, with great dangers of erosion, because they also have thin soils, located in the foothills or high plateaus.